Roll for slitting iron



(HQ Model.)

H. GREER.

ROLL POR SLITTING IRON. No. 281,184. Y Patented July 10,1883.

N. PETERS Phnbumgnplwr. Washington. D. C.

` UNITED, [STATES "PATENT HOWARD canna, or cHIcAGO, ILLINoIs.

ROLL FOR SLITTING IRON.

SP'IEICIIIFIC'A'IION forming part of Letters'Patent No. 281,184, dated July 10, 1883.

v Application tiled March 26, 1883. (No model.)

To @ZZ whom it may concern.-

Be it knownthat I, HOWARD Genna, acitizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented or discovered a new and useful Improvement in Rolling and Slitting Iron 5 and I do hereby declare the following to be a full, clear, concise, and exact description thereof, reference being had to the accompanying draw ings, making a part of this specification, in which-like letters indicating like parts- Figure 1 is a view in elevation of a threehigh set of rolls, such as I employ in my present invention, and illustrative of the construction of two sets of grooves for doing the work in view. Fig. 2 is an end view of a bar show.- ing the product of one set of grooves. Fig. 3 is an end view of a bar showing the product of the other set of grooves. Fig. 4 is 4an end view of a bar showing a broader product, or one containing a greater number of sections; and Fig. 5 illustrates in outline perspective the manner of dividing the bar of Fig. 2 into sections, or of separating the sections.

My present invention relates to an improved `inode of producing a series of two or more bars or rods of iron or steel simultaneously from a. single billet, pile, or fagot. Such bars or rods have heretofore been made by rolling each one separately, or by rolling to a plate or bar of suitable width and thickness to be severed in to two or more bars or rods, each of the desired width, and then slitting them apart, the bar or plate before slitting being plain-faced, or, if corrugated, having at all points a practically uniform thickness.

My improved bar as produced for slitting or for severance into separate bars or rods (and which latter for convenience I herein term sections) is made with all or the greater part of the material which is to form the successive sections alternately above and below a horizontal plane passing through the plate about midway between its upper and lower faces, as illustrated in Figs. 2, 3, and 4, where the dotted lines x an indicate line of plane referred to. The bar or plate thus formed will then consist of one or more ribs or sections, c, above such transverse horizontal plane, and one or more sections, e, below such horizontal plane` but all connected together at adjacent corners bya thin portion of metal or material; or, in other words, the several sections slightly lap onto each other along their adjacent cor ners, so that the plate so formed is not up to that point completely severed into separate sections. Such bar is thenpassed through between a pair of plain-faced rolls, or between rolls otherwise so formed that the several sections will be forced up and down into a common plane, or so nearly into a common plane that one moving across the adjacent face of the other on `one or either side thereof will produce a severance of the sections one from another along the vertical planes of junction. This step is more particularly illustrated in Fig. 5, where only enough of the rolls R R are shown to illustrate their action inbringing the sections to the same plane, and so effecting their separation. l

In working this invention any suitable rolls may be employed; but in Fig. l l have for illustration shown a set from which and the following description the skilled mechanic will have no difficulty in making and operating such rolls, and a set or train of rolls having substantially such a system of grooves as is represented is included herein as a part of the present invention. A billet, pile, or fagot suitably prepared is passed through between the topmost rolls B R through the space A. One roll has a concave groove, a, and the other has one, two, or more collars, c', one for each of the grooves e', Fig. 2, to be made in the pro duct of these rolls. The bar or billet is then passed between the two lower rolls through the space B. The upper roll of this pass has a central collar, s, and two side collars, s', between which the sections c c, Fig. 2, are partly formed, and the lower roll has central and end collars, s2 s s, between which the sections e, Fig. 2, are partly formedJ` and the centra-l colA lars of one roll are opposite thejgrooves between the collars of the other roll. The bar or billet then goes through the pass D, where the collars lr r yr2 of the upper roll and the collars r* of the lower roll are arranged substantially as shown and properly proportioned to produce or shape the bar shown in end view in Fig. 2. lf a larger number of sections be IOO 2 :esima:

desired, asin Fig. 4, 'the rolls should be corre-A spondingly. lengthened and the propennumber of collars be added.

For some purposes in the arts a rib, z, Fig. 3, of some regular or irregular shape may be desired along each section. For the purpose of rolling such section I use the passes through G, I-I, and J in the order named. The arrangement and action of the collars employed will be readily understood from the drawings and the previous description; but the lower collars, z', in the last passare each grooved, as at z2, so as to provide for the formation of the rib z on each section. In this way I 'make the bar of Fig. 3, which, however, is shown in Yinverted position, as compared with the delivery position in leaving the rolls; but the grooves z2 may be made in the collars r3 of the other roll and in the bottoms of the intermediate grooves, but the arrangement shown is believed'to b e the best.

The sections are severed wholly or partiallyv by passing them betweenl suitable rolls, as at R R, so as to force them into or nearly into a common plane. This work will ordinarily be done while the sections are below a weldingheat, or with steel or like unweldable metal it may be done at any heat or even down to cold. The shape and size of the sections c e are immaterial,'as also their number, the only essential featurebeing the `working of the metal in sections :niostly above and below an intermediate plane preliminary to their severance by being thereafter forced past each other into or approximately into a -common plane. Guideiron, as illustrated in vFig. 6, or other regular or irregular forms may be made in like manner.

for slitting or severance longitudinally by working the metal in longitudinal sections alternately above and belowr an intermediate plane, but with the several sections adhering along adjacent corners, substantially as set forth.

2.` 'Ihe method of making rod or bar iron or steel by working the metal in longitudinal sections alternately above and below an intermediate plane, but with the several sections adheringalong adjacent corners, and then forcing the sections into or approximately into a common plane, substantially as set forth.

3. A pair or train of rolls having aseries of grooves and collars, substantially as set forth, for the working of the metal of a bar or billet into longitudinal sections alternately above and below an intermediate plane, substantially as set forth. f

4. In a pair or train of rolls having a series of grooves and collars, substantially as set forth, for working the metal of abar or billetY alternately above and below an intermediate plane, the grooves z2, for forming ribs z, substantially as described.

In testimony whereof I have hereunto set my hand. v

`HOWARD GREER.

yWitnesses: MORRIS SELLERS,

FRANK J.l Lonscn. 

